Anti Fungal and Malaria Flashcards
What do azoles target?
ergosterol
What does Amphotericin B target?
Bind to ergosterol and creates leaky pores
Amphotericin B: ADEs
- Nephrotoxic
2. Infusion reactions (chills, fever, muscle spasms, hypotension)
Flucytosine: ADEs
- Renal excretions
2. Myelosuppression (suppression of stem blood cells)
Which Azole is eliminated in the urine unchanged?
Fluconazole
Which Azole is best for aspergillosis?
Voriconazole
Which Azoles are best for Blastomycosis?
- Itraconazole
2. Fluconazole
Which Azole is best for Mucormycosis?
posaconazole
Why isn’t ketoconazole used in systemic fungal infections?
inhibits hepatic and adrenal P450s
Azoles: ADEs
- tough on the liver
- GI upset
- Rash
Voriconazole: ADEs
- visual disturbances
- Class D in pregnancy
Which antifungal is best taken orally for mucocutaneous fungal infections because it can accumulate in keratin?
Terbinafine
What is first line therapy for aspergillus infection?
Voriconazole
What is first line therapy for everything but aspergillus?
Amphotericin B
What are the 3 most important ADEs of antifungals?
- Heptatic transaminases
- Rash, photosensitivity
- GI upset